You describe the business requirement, but I was actually asking what the business wants to do with an order which is not going to be billed and not going to be delivered.
Usually such orders are rejected after a specific time frame based on the agreed procedures for obsolete documents cleaning - this is why I ask.
Or if this is not exactly an order, maybe it is some sort of inquiry?
What kind of confirmation you require from the customer after he has placed such order? You send him information on prices or for delivery dates and wait for approval or is it something else?